Subtract 56/49 from 5/90, Solve 5/90

Subtract 56/49 from 5/90

1^st number: 5/90, 2^nd number: 1 7/49

5/90 - 56/49 is -137/126.

Find the least common denominator or LCM of the two denominators:
LCM of 90 and 49 is 4410

Next, find the equivalent fraction of both fractional numbers with denominator 4410
For the 1st fraction, since 90 × 49 = 4410,
5/90 = 5 × 49/90 × 49 = 245/4410
Likewise, for the 2nd fraction, since 49 × 90 = 4410,
56/49 = 56 × 90/49 × 90 = 5040/4410
Subtract the two like fractions:
245/4410 - 5040/4410 = 245 - 5040/4410 = -4795/4410
After reducing the fraction, the answer is -137/126

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